Alcatel-Lucent 9500 MXC User Manual page 850

Ring Node Applications
Vol. VI-E-4
Co-channel 64xE1 (128xE1) Backhaul Node
Figure E-4.
ODU 300
V
75xE1 (V)
75xE1 (H)
H
ODU 300
XPIC Cross-Connect Cables
For co-channel 64/75xE1 or 84/100xDS1 operation, use paired INUs, with one
RAC 40 installed in each. For more information, refer to co-channel operation in
Volume II, Chapter 4.
Two ring applications are considered:
• Rings without point-to-point traffic overlay; all circuits on the ring are
ring-protected. See Rings Without Pt-to-Pt Overlay on page E-5.
• Rings with point-to-point traffic overlay. See Rings With Pt-to-Pt Traffic
Overlay on page E-6.
Examples shown are for NxE1, or NxDS1 rings. While 9500 MXC may be used
to implement an STM1/OC3 protected ring, the ring protection mechanism is
performed within a paired SDH mux; not within 9500 MXC.
• For SDH rings, STM1/OC3 traffic is transported by 9500 MXC as
point-to-point circuits; linear node rules apply.
ODU 300
ODU 300
RAC 40 RAC 30
NCC
RAC 40 RAC 30
NCC DAC 16x
75xE1
64xE1
INU
INU
75xE1
150xE1
64xE1
11xE1
11xE1
Alcatel-Lucent